US3891332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welded anchorage stud
Assignee: MOLYNEUX ENGINEERING Co L
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Filing: 1972-02-11
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Granted: 1975-06-24
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Expires: 1992-02-11
Abstract
Abstract An anchorage stud or bolt designed to be welded to a base metal surface, the end of the stud being formed with a small conical projection surrounded by an annular groove to fit in a conical depression with a crater lip formed in the base surface. The surrounding lower edge of the stud has an undercut to receive weld metal by which the stud is anchored to the base surface.
Inventors
- 👤 George Molyneux
- 👤 George Walter Molyneux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:15
CPC Classifications
E; E01; E01B; E01B9/00; E01B9/02; E01B9/28; E01B9/30; F; F16; F16B; F16B9/00; F16B9/01; Y; Y10; Y10T; Y10T403/00; Y10T403/16; Y10T403/1616; Y10T403/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
In a welded stud construction comprising a metal stud and a metal base member, the base member having in a flat surface thereof a punched depression around which is formed a crater lip, and the stud having an end face with a central projection for locating the stud by reception of said projection within said depression; the improvement in which said stud end face has an annular groove around said projection to accommodate the crater lip, an annuular flat land area around said groove which sits on said surface when the projection is engaged in said recesses, and a peripheral cutaway portion for accommodating a fillet weld.
Claim 2
Dependent Claim
107 words
In a welded stud construction comprising a metal stud and a metal base member, the base member having in a flat surface thereof a punched depression around which is formed a crater lip, and the stud having an end face with a central projection for locating the stud by reception of said projection within said depression; the improvement in which said stud end face has an annular groove around said projection to accommodate the crater lip, an annuular flat land area around said groove which sits on said surface when the projection is engaged in said recesses, and a peripheral cutaway portion for accommodating a fillet weld.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-23 | 1978-12-23 | 1979-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-23 | 1982-12-23 | 1983-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-23 | 1986-12-23 | 1987-06-24 | $7700.00 | Window Closed / Lapsed |